도시철도 역사 신재생에너지 활용을 위한 멀티레벨 인버터 개발

초록

Energy Saving Methods in existing railway vehicle are considered by active approach such as regenerativeenergy storage and utilization, eco driving, etc. On the other hands, energy saving measures in railway station are operated bypassive method such as reduction of operating time in ventilation system, cooing system and power equipment. To reduceenergy and for independence in railway system, it requires an active energy saving measures. It needs to its own powersource besides the power source of electric supply company such as renewable energy and regenerative energy and take theadvantage of power storage system and stored power are used in optimum time. This paper deal with 3-level NPC inverterand T-type NPC inverter that used in various multi-level topology applicable to the railway system.

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